Tree species diversity and spatial distribution patterns on agricultural landscapes in sub-humid Oromia, Ethiopia

Samuel, Dawit; Derero, Abayneh; Kebebew, Zerihun; Hadgu, Kiros Meles

doi:10.1007/s10457-018-0197-7

Cited by 10 publications

(2 citation statements)

References 15 publications

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“…This might be increased disturbance by human, and animals, and continuous tilling the same land affecting regeneration in parkland agroforestry system. This is supported by [9,11,12,24]. There is significant difference between highland, and midland parkland agroforestry in terms of basal area (m 2 per plot, ha -1 ) of woody species in the study area at P < 0.05 (Table 5).…”

Section: Diameter Class Distribution Density and Basal Areasupporting

confidence: 55%

Woody Species Diversity, Structure, and Management of Parkland Agroforestry along Agroecology: The Case of Tembaro Special District, Central Ethiopia

Beyene,

Laemancho,

Bufebo

2024

Preprint

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Parkland contributes economic, social, and ecological benefits worldwide. However, parklands degradation is an encounter to biodiversity loss needs generating information on woody species. This study was aimed to investigate woody species composition, diversity, structure, and management of parklands along Agroecology, and farmers’ wealth status. Multistage sampling technique was employed. Highland Bede Kebele, and midland Durgi Kebele were randomly selected. A total of 60 quadrats with size of 100m x 50m were used for inventory. A total of 276 respondents were used. Species richness, Shannon, Simpson, and evenness diversity indices were subjected to one-way ANOVA, and independent t-test for comparison STATA V. 17.0. Of 31 woody species, (16 families in 26 genera) observed, 26 woody species belonging to 13 families in 22 genera from midland while 18 woody species belonging to 12 families in 16 genera from highland parklands were observed. Species richness 6.8, 3.7; Shannon 1.82, 1.68; Simpson 0.85, 0.73; evenness 0.83, 0.7 were observed in midland, and highland parklands, respectively. Poorly regenerated stands were observed along Agroecology. Pruning, pollarding, coppicing, lopping, cutting, fertilizing, watering were common management practices. In conclusion, woody species diversity, and structure were affected by Agroecology, and socioeconomic factors needing intervention to enhancing woody species conservation.

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Section: Diameter Class Distribution Density and Basal Areasupporting

confidence: 55%

Woody Species Diversity, Structure, and Management of Parkland Agroforestry along Agroecology: The Case of Tembaro Special District, Central Ethiopia

Beyene,

Laemancho,

Bufebo

2024

Preprint

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“…Plant diversity within communities was estimated and compared based on species richness (S)-number of species in the community, Shannon-Wiener diversity index (H), and evenness index (J). Besides the analysis of the number of species, Rényi diversity profiles (H α ) were constructed [25][26][27] to compare the effects of grazing on plant diversity. Diversity profiles play an important role in diversity comparisons and use parametric families of diversity indices instead of a diversity index with a numerical value.…”

Section: Statistical Analysesmentioning

confidence: 99%

Is Grazing Good for Wet Meadows? Vegetation Changes Caused by White-Backed Cattle

et al. 2023

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Wetland ecosystems are highly productive and valued for numerous reasons including wildlife habitat, biodiversity, water quantity and quality, and human uses. Grazing livestock on wet grasslands can sometimes be controversial due the humidity of the habitat, but on the other hand, it plays an important role in grassland preservation. Therefore, we evaluated the impact of Polish white-backed cattle grazing on changes in the vegetation (13 phytosociological relevés taken in years 2016–2019) of wet meadows as well as forage quality based on the species composition. Biodiversity was estimated based on species richness, Shannon–Wiener diversity and evenness indices, and Rényi diversity profiles. The peatland featured mostly high-sedge and wet meadows communities of the Magnocaricion and the Calthion alliances. The species and biodiversity indices demonstrated significant rising trends. Extensive grazing resulted in the decreased cover of the dominant species of rush meadows, e.g., the common reed, acute, and tufted sedge. The gaps that had emerged thanks to the reduced cover of the dominant species were filled by meadow plants, which led to increased biodiversity. During the four years of grazing, the cattle obtained satisfactory weight gains, particularly in 2019, which indicates that wet meadows are suitable for grazing and can provide sufficient feed for cattle.

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Farmer-led approaches to increasing tree diversity in fields and farmed landscapes in Ethiopia

et al. 2020

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Increasing tree cover and managing trees better on farms in Ethiopia supports livelihoods and the environment but most tree-planting schemes promote only a few species. This research aimed to understand farmers' tree planting priorities in Oromia, Ethiopia and address challenges involved in meeting them. Tree species and planting niches were elicited through focus group discussions. Participatory trials compared 17 tree species across seven on-farm planting niches and seedling survival and growth patterns were evaluated. Farmers suggested a high diversity of tree species suitable for each niche with fruit species mainly selected for homesteads. The diversity of desired tree species is much higher than that typically available in nurseries or promoted by tree planting projects. Meeting planting demands was difficult because the existing seedling supply does not support diversity. Evaluation of tree survival showed striking differences among species, farms, agroecologies and planting niches. There was high variation in seedling survival amongst the tree species planted on 1893 farm/planting niche locations, indicating impact of local level risk factors attributable to management, biotic and abiotic causes. Growth differences of the six shared species common to both agroecologies across different niches, showed that the effects of species and niche were significant on growth. A farmer-led approach to increasing tree cover that couples understanding of species and planting niche preferences with appropriate seedling supply and management is proposed as a means to increase the diversity of trees in farmed landscapes.

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Tree species diversity and spatial distribution patterns on agricultural landscapes in sub-humid Oromia, Ethiopia

Cited by 10 publications

References 15 publications

Woody Species Diversity, Structure, and Management of Parkland Agroforestry along Agroecology: The Case of Tembaro Special District, Central Ethiopia

Woody Species Diversity, Structure, and Management of Parkland Agroforestry along Agroecology: The Case of Tembaro Special District, Central Ethiopia

Is Grazing Good for Wet Meadows? Vegetation Changes Caused by White-Backed Cattle

Farmer-led approaches to increasing tree diversity in fields and farmed landscapes in Ethiopia

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